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An aqueous solution at 27 degrees Celsius contains 3.6 grams of a protein in a 200 ml sample. The osmotic pressure is .0203 atm. Define what is the molar mass of the protien?
The pH at the half-neutralization point. Enter only numbers in your answer. (Do not include units.) (d) The pH at the equivalence point.
The boiling point of propylamine, CH3CH2CH2NH3, is 48 °C while that for its isomer trimethylamine, (CH3)3N, is only 3 °C. Explain the difference on the basis of the intermolecular forces
Gas in a tank contains a poison at a concentration (CT), but the gas is leaking into the surrounding room at a rate of T cm3/min. Meanwhile, an air conditioner brings fresh air into the room at a rate of A cm3/min.
Suppose that you obtain 1.0 g of salicylic acid from the hydrolysis of 1.3 mL of methyl salicylate. Calculate your percent yield.
How many atoms of phosphorus are in 3.44 moles of phosphorus?
The hydrocarbon benzene C_6_H_6_ boils at 80.1 C. How much energy is required to heat a 1.00 kg of this liquid from 20 C to the boiling point and then changes the liquid completely to a vapor at that temperature
Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a precipitate of chromium (III) fluoride ( for CrF3, Ksp = 6.6 X 10^-11)
Explain why the colour of the light emitted by an element in the gaseous state is characteristic of the element & explain with a sketch diagram how a hydrogen atom, which has only one electron, has so many spectral lines.
Calculate the volume of a 0.200 M NaOH solution needed to neutralize 40.0 mL of 0.600 M HNO3 solution.
consider the following reaction.ch3ohg cog 2 h2g h 90.7 kjcalculate e when 770.0 g of ch3ohg completely reacts at a
On a trip of 287 miles, a driver maintains an average speed of 85.0 km/hr. How many minutes does the trip take
magnesium ions can be precipitated from seawater by theaddition of sodium hydroxide.how much sodium hydroxide in grams
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